The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2004
Filed:
Aug. 30, 2001
Applicant:
Inventor:
Woo-Sik Eom, Gyeonggi-do, KR;
Assignee:
Samsung Electronics Co., LTD, Suwon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
An apparatus and method are provided receiving wobble signals indicative of a wobble pattern formed on an optical medium. A wobble lock/unlock detector detects whether the wobble signals exist during a wobble window period and generates wobble lock/unlock signals indicative thereof. A wobble defect detector counts the wobble window signals in response to the wobble lock/unlock signals indicating that the wobble signals do not exist during the wobble window period, detects a wobble defect in response to the counted wobble window signals satisfying a defect decision condition, and outputs a defect detection signal indicative thereof.